From Play to Aggression: High-Frequency 50-kHz Ultrasonic Vocalizations as Play and Appeasement Signals in Rats
Kisko, T.M., Wohr, M., Pellis, V.C., Pellis, S.M.
· 2015
★ NIFPlay Rating: 9
Rating Scale
10 Rigorous play-specific science
6–9 General biological science
5 Sound play research (uncontrolled)
1–4 Less rigorous / indirect
0 Indirect but high value
Demonstrates that 50 kHz calls serve dual functions as play initiation signals and appeasement signals that can redirect aggressive escalation, illuminating the social complexity of rat play.
